Airtac SI40 Standard Cylinder SI40X250SFA
2. Features wear-resistant Y-shaped axial sealing structure with cushioning function, extended service life, and low friction resistance;
3. Aluminum square tube profile with anodized tie rods for superior corrosion resistance;
4. Built-in adjustable pneumatic cushioning at both ends;
5. Multiple cylinder specifications and mounting accessories available for flexible configurations.
Category: Standard Cylinders | Brand: AirTAC | Series: SI40
AirTAC SI40X250SFA Standard Cylinder Specifications
- Model: SI40X250SFA
- Bore size: 40mm
- Stroke: 250mm
- Operating pressure: 0.15–1.0 MPa
- Temperature range: -20℃ to 80℃
- Cushioning type: Adjustable buffer (both ends)
- Mounting style: Standard AF/FF series foot mounting
- Port size: 1/4" NPT (G1/8 optional)
- Rod thread: M12×1.25
- Cylinder material: Hard anodized aluminum alloy
- Seal material: NBR (Nitrile rubber)
- Piston rod material: Chrome-plated steel
- Protection rating: IP65 (dust-tight & water jet resistant)
- Weight: 2.8kg (without accessories)
- Dimensions: 485mm(L) × 63mm(W) × 63mm(H)
A heavy-duty ISO 6432 compliant cylinder featuring double-acting operation and precision honed inner tube. The wear-resistant design incorporates dual piston seals and anti-rotation guide bushings, delivering 50,000km+ service life under standard conditions. Requires ISO 8573-1:2010 Class 3 lubricated air (viscosity ISO VG32).
- Automated assembly line clamping mechanisms
- Plastic injection molding machine ejectors
- CNC machine tool door actuators
- Industrial packaging equipment pushers
- Palletizing robot end-effector drives
Installation tip:
Align cylinder axis within 0.2mm perpendicular tolerance during mounting.
For vertical installations exceeding 45° angle, use rod-down orientation
and install an external shock absorber at stroke end.
| Property | Property Value |
|---|---|
| sku | SI40X250SFA |
| Seal Material | Polyurethane |
| Understood. Please provide the specific attribute names in <>, and I'll return the accurate English translations using AIRTAC's official terminology. Example: User input: <缸径> My output: Bore | Operating Temperature: -20℃ to 80℃ Speed Range: 30-800 mm/s |
| Port Size | PT1/4 |
| Piston Rod Material | Medium Carbon Steel |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | <250MM> → <250mm> |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.